Abstract
Permanent magnets are machined by Electrical Discharge Machining. The thermal influence on the workpieces can affect the magnetic properties.Therefore, the magnetisation of the material is performed in a subsequent processing step.Pulsed Electrochemical Machining (PECM) represents a potential alternative. It is expected that the oscillation of the cathode leads to electrical current induction, which affects the electric current density on the workpiece surface.In this study, the electrical current induction when machining Nd-Fe-B with PECM is analysed based on simulation. Based on the results, recommendations of process input variables for the PECM process can be derived.
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